Glycosyl biforate carbon material and preparation method and application thereof
A carbon material and pore type technology, which is applied in the preparation/purification of carbon, pharmaceutical formulations, medical preparations of non-active ingredients, etc., can solve the problems of insufficient concentration of pore size distribution and intelligent control of pore size distribution, and achieve charcoal formation The effect of high rate, improved drug half-life and low cost
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Embodiment 1
[0036] Dissolve 1g of poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) triblock copolymer in 0.5g of water until uniformly dispersed, stir at 50°C for 1h, then add 0.2g of raffinose, extract and reflux with 3ml of ethanol for 24h; add 0.2g of silicon source was aged at 80°C for 48h, then filtered, washed, and dried; transferred to a tube furnace and roasted at 900°C for 1h under the protection of nitrogen; the obtained product was washed with acid solution, and then washed with distilled water or deionized water to The pH value is 6-7, and the specific surface area of BET obtained after drying is 1098m 2 / g, total pore volume 0.97cm 2 / g, containing most of the 4.2nm mesopores and a small amount of 125nm macropores. Electron microscope photos of the product figure 1 , the pore size distribution is Figure 4 . Figure 4 The abscissa of is the pore size, the unit is nm, and the ordinate is the pore size distribution, the unit is cm 3 / (g·nm), the figure sho...
Embodiment 2
[0038] Dissolve 1g of poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) triblock copolymer in 5g of water until uniformly dispersed, stir at 80°C for 1h, then add 1g of sucrose, 6ml of ethanol, extract and reflux for 48h; add 1g of silicon source in Aged at 100°C for 24 hours, then filtered, washed, and dried; transferred to a tube furnace and roasted at a high temperature of 500°C for 10 hours under the protection of nitrogen; the product was washed with acid solution, and then washed with distilled water or deionized water until the pH value was 6~ 7. After drying, the BET specific surface area is 1179m 2 / g, total pore volume 1.39cm 2 / g, containing most of the 7.7nm mesopores and a small amount of 113nm macropores. Electron microscope photos of the product figure 2 .
Embodiment 3
[0040] Dissolve 1g of poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) triblock copolymer in 10g of water until uniformly dispersed, stir at 100°C for 4h, then add 2g of raffinose, extract with 6ml of ethanol and reflux for 72h; add silicon source 2g was aged at 130°C for 72h, then filtered, washed, and dried; transferred to a tube furnace and roasted at 700°C for 3h under the protection of nitrogen; the obtained product was washed with acid solution, and then washed with distilled water or deionized water until the pH value was 6~7, after drying, the BET specific surface area is 1338m 2 / g, total pore volume 1.45cm 2 / g, containing most of 6.1nm mesopores and a small amount of 120nm macropores. Electron microscope photos of the product image 3 .
[0041]Compared with the prior art, the experimental results of Examples 1-3 prove that the present invention has the advantage of containing a double-pore structure, and is expected to have selective regulation an...
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Abstract
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